Option in settings for the bookmark/comments and/or 'all tools' pane to be minimised on opening of any file. The user should be given control over their preference, rather than how the document was saved. The 2 panes together take up almost half the screen area and I have to manually close them each time I open a new file. There should be an option in setting to over ride any pre-sets of the file. The creator of the file should have no control over my user experience of Adobe Reader.